T oday, National Geographic released the trailer for the critically acclaimed documentary special Billy & Molly: An Otter ...

News 2 has introduced you to the otters on Old Hickory Lake before when they were captured playing in Ann Shapiro's backyard.

"Otters are very playful animals. They are a semi-aquatic animal here in Tennessee. They play, but that play has meaning for them," explained Barry Cross of the Tennessee Wildlife Resource Agency.